Rhea said it felt "so good to do something completely different" for her new role

“Plus, after a couple of years looking mean and moody to play Caz, it was nice to ditch the drab attitude and spend a bit of time in hair and make-up, with cute costumes, delivering all the upbeat, positive lines,” she continued.

“I’m actually smiling on screen for a change!” she gushed.

A Royal Winter is due to air in the UK on the Universal Channel later this month.